pa polyamide 中文意思是什麼
pa polyamide
解釋
聚酰胺-
The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm
本論文以開發無機?有機復合納濾膜為出發點，首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜；選用聚乙烯醇和聚酰胺為表面功能層材料，分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑，採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜；以均苯二甲酰氯、哌嗪和二胺為單體，採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜，並對影響膜性能的諸多因素進行系統研究。 -
The polyamide to easy generation salivate ( pa ), through choosing form of a powerful person hot nozzle also can realize hot flow path to shape
對易產生流涎的聚酰胺（ pa ） ，通過選用閥式熱噴嘴也能實現熱流道成型。 -
This article analyzes the main cause for such embrittlement deformation and introduces the alternative process by replacing the ep with low molecule polyamide resin ( pa )
本文分析了產生脆裂變形的原因，並介紹了改用低分子聚酰胺樹脂的工藝技術。 -
Pa. 2 : plastics. polyamide moulding and extrusion materials. part 2 : preparation of test specimens and determination of properties
塑料.模塑和擠壓成型的聚酰胺 -
With the exception of the fuel tank, which is made of metal or treated high - density polyethylene, and the fuel pipes which are made of polyamide pa 12, the fuel system components are generally made of polyamide or polyacetal
除了用金屬或處理過的高密度聚乙烯做成的油箱和用尼12做成的油管外，燃油系統部件總體上是以聚酰胺和聚甲醛來製造。
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